baber/WOPTO huggingface dataset:
Patent LU-502591-B1 (LU)
Title: Annular negative pressure suction device at anastamosis
Inventor: WANG SHUAIQI
IPC: A61M1/00
Filed: 2022-07-28
Granted: 2023-01-30
Abstract: The application discloses an annular negative pressure suction device, which comprises a body fixed at the anastamosis arranged in the middle of the body, and a plurality of suction holes evenly distributed on the inner and outer sides of the body; the outside of the body is wrapped with a porous adsorption body, one side of the body is provided with a joint communicated with the inside, and the joint is connected with a negative pressure pipe through a central negative pressure suction machine; the upper part of the body is covered with an annular semitransparent sealing membrane matched with the shape of the body, the middle part of the sealing membrane is provided with a hole for leaking anastamosis fistula, and the diameter of the hole is smaller than the inner diameter of the body.
Patent LU-504614-B1 (LU)
Title: Method for cultivating Zanthoxylum
Inventor: LIU JING
IPC: A01G7/06
Filed: 2023-06-28
Granted: 2024-01-11
Abstract: The present invention belongs to the technical field of plant reproduction, and in particular, relates to a method, including seedling, transplanting and pruning, for cultivating Zanthoxylum. According to the present invention, survival rates of the Zanthoxylum are improved by cutting 5 seedlings, transplanting and pruning, so that high survival rates of seedlings and high survival rates of transplanting are obtained, thus promoting growth and production of the Zanthoxylum.
Patent LU-504693-B1 (LU)
Title: Haustierfutter zur Verbesserung der antioxidativen Fähigkeit des Körpers und Herstellungsverfahren davon
Inventor: LU CHANG
IPC: A23K10/20
Filed: 2023-07-07
Granted: 2024-01-11
Abstract: Die vorliegende Erfindung betrifft das technische Gebiet des Haustiers, insbesondere ein Haustierfutter zur Verbesserung der antioxidativen Fähigkeit des Körpers und ein Herstellungsverfahren davon, wobei das Haustier aus den folgenden Komponenten zusammengesetzt ist: 20-30 Teilen Maismehl, 20-40 Teilen Kartoffelmehl, 10-20 Teilen hydrolysiertem Protein, 1-2 Teilen zusammengesetzter Vormischung, 4-5 Teilen Öl und Fett, 1-2 Teilen Hefeselen, 1-2 Teilen Fischpeptid und 10-20 Teilen hydrolysiertem Federpulver. Bei der vorliegenden Erfindung wird in dem Haustierfutter Fischpeptid hinzugefügt, und die antioxidative Fähigkeit ist mehr als das Zweifache der von Vitamin E, was die Immunität des Haustieres effektiv verbessern kann; das Haustierfutter der vorliegenden Erfindung hat die Eigenschaften zum Löschen der Hitze, Stärken der Milz und des Magens, Fördern der Magen-Darm-Dynamik, Verbessern der Immunität und schnellen Hinzufügen der Energie.
Patent NO-301933-B1 (NO)
Inventor: BUTER ROELOF
IPC: C08F283/02
Filed: 1994-01-20
Abstract: The invention relates to an air-drying aqueous polymer dispersion based on a core/shell polymer having an alkyd resin in the core and an addition polymer grafted thereon, with 50-90 wt.% of the core/shell polymer being comprised of alkyd resin and 50-10 wt.% being comprised of addition polymer, and with the alkyd resin   containing more than 40 and up to 80 wt.% of unsaturated fatty acid, at least 5 mole% of which contains conjugated double bonds,   having an acid number of not more than 5 (mg KOH/g), and having a number average molecular weight in the range of 400 to 5000, and with the addition polymer having an acid number in the range of 40 to 200 (mg KOH/g).   The aqueous polymer dispersions according to the invention were found to be highly stable and to have a comparatively low viscosity, even at concentrations of 40 wt.% and above. It was found that topcoats obtained using dispersions with a high alkyd resin content are virtually identical in terms of properties with topcoats obtained in a traditional manner using alkyd paints based on organic solvents, while the gloss of topcoats obtained using the polymer dispersions according to the invention frequently is even higher.
Patent NO-312747-B1 (NO)
Inventor: GRAHAM HERBERT KERR
IPC: A61K38/48
Filed: 1994-03-23
Abstract: The invention provides for the use of a botulinum toxin to treat contracture, such as muscle contracture, in patients by transdermal administration of the botulinum toxin.
Patent NO-310727-B1 (NO)
Inventor: BARRE GUY
IPC: C10G45/64
Filed: 1995-04-26
Abstract: A process for the preparation of a lubricating base oil including contacting a hydrocarbon feed with a catalyst in the presence of hydrogen, which catalyst includes a hydrogenation component supported on an amorphous silica-alumina carrier having a macroporosity in the range of from 5% vol to 50% vol. The hydrocarbon feed is most preferably a slack wax or a synthetic wax. The preferred catalyst for use in the process includes a combination of one or more of the metals cobalt, iron, and nickel, and one or more of the metals chromium, molybdenum, and tungsten on an amorphous silica-alumina carrier having a macroporosity in the range of from 5% vol to 50% vol.
Patent NO-307968-B1 (NO)
Inventor: CHEN YUHPYNG L
IPC: C07D471/04
Filed: 1996-12-13
Abstract: This invention relates to compounds of the formulawherein A, B, R3, R4, R5 and R7 are as defined herein, and to their use in the treatment of stress-related diseases.
Patent NO-310665-B1 (NO)
Inventor: RUEF HARTMUT
IPC: D06L4/50
Filed: 1997-08-13
Abstract: The invention relates to a process for producing cellulose moulded articles of high brightness, the process being characterised by the following combination of measures: pulp is bleached with a bleaching agent which must not contain chlorine or any chlorine compound; the pulp once bleached is dissolved in an aqueous tertiary amine oxide to produce a mouldable cellulose solution; and the mouldable cellulose solution is worked into moulded articles.
Patent NO-313639-B1 (NO)
Inventor: HAHN KLAUS
IPC: C08J9/224
Filed: 1998-11-13
Abstract: PCT No. PCT/EP97/02362 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 7, 1997 PCT Pub. No. WO97/43334 PCT Pub. Date Nov. 20, 1997The present invention relates to expandable polystyrene beads containing blowing agent which are coated with from 0.01 to 0.5% by weight of a hydrophobicizing agent which melts above 25 DEG  C. and has a mean particle size of less than 100  mu m. The beads can be converted into foam moldings having reduced water absorption capacity.
Patent NO-314268-B1 (NO)
Title: Kunstfibertau
Inventor: ANGELIS CLAUDIO DE
IPC: D07B1/02
Filed: 1999-10-22
Abstract: For å forbedre den indre kraftoverføringen i et befordringstau som er drevet av et tauhjul, der tauet omfatter en parallelltvunnet taukjerne (9) som er påtvunnet et dekktrådlag (12) med motsatt slagning, og der tauet omfatter en mellomliggende mantel (13) som er anordnet mellom de tvunnede trådlag med motsatt slagning, er det foreslått at den mellomliggende mantel (13) oppviser en manteloverflate med en ytre kontur som er tilpasset det tilgrensende trådlag (8, 12). Den mellomliggende mantel (13) danner dermed en friksjons- og krafttilpasset overføring av krefter og momenter fra dekklaget (12) til taukjernen (9) og fordeler disse over hele den omsluttende manteloverflate. Ved hjelp av denne forbindelse mellom de indre og ytre trådlag oppnås større torsjonsstivhet i tauet (1).
Patent RO-115428-B1 (RO)
Title: Installation for automatic electrochemical treatment of slotted pipes
Inventor: PASCALE TRAIAN
IPC: B23H3/00
Filed: 1992-06-18
Abstract: The invention relates to an automatic electrochemical treatment of slots having a width within the range of 0.3 to 0.8 mm and a length within the range of 100 to 120 mm, located on the generatrix of the metallic pipes used as filters in oil and gas wells working in oil fields deposits with loose. Such filter are also used in water supply wells. Said installation can make such slots in metallic pipes having a diameter ranging from 50 to 323.8 mm and lengths up to 1,000 mm. The automated installation comprises a hydraulic pressure source ( 15 ), a safety control and filter unit ( 16 ), a manual flow rate control unit, an electrically driven hydraulic distributor ( 18 ) hydraulic cylinder ( 19 ), a balancing unit ( 21 ) located in a mobile carriage-assembly (20), next to other known elements such as a DC power source ( 22 ), a AC power source ( 23 ) and an advancing system. The installation also comprises an automatic control module comprising a filtering and a preamplifying unit ( 25 ), an amplifying and comparing unit for the comparison of the working current with a predetermined value ( 26 ), a control unit for the working element ( 27 ), a control unit for the electrovalve of the balancing unit ( 28 ), a supply unit ( 29 ).
Patent AT-507799-B1 (AT)
Title: Querflöte
Inventor: TOMASI WERNER
IPC: G10D7/02
Filed: 2009-04-01
Granted: 2010-08-15
Abstract: Querflöte, deren Schallrohr einen linearen Abschnitt (2), der zur Veränderung der Tonhöhe dienende Klappen (3) trägt, und ein eine Mundplatte (4) tragendes lineares Kopfstück (5) aufweist. An jener Seite (6) des Kopfstückes (5), die dem die Klappen (3) tragenden Abschnitt (2) zugewandt ist, ist ein bogenförmiger Abschnitt (7) des Schallrohres vorgesehen, der mit dem Kopfstück (5) und mit dem die Klappen tragenden Abschnitt (2) fluchtend zusammengefügt ist.
Patent BR-0013199-B1 (BR)
Inventor: SON CHEOLSOO
IPC: B01D53/14
Filed: 2000-07-05
Abstract: Methods and apparatus for purifying contaminated air using mixed liquid are disclosed. The invention includes an air inlet structure for taking in contaminated air, an air purifying compartment connected to the air inlet structure at one end for purifying contaminated air, and an air outlet structure connected to the air purifying compartment at another end for discharging purified air to the outside. The invention uses mixed liquid in its air purifying method. The invention includes a method that uses centrifugal force to form a mixed liquid filter, a method that takes in contaminated air, a method that purifies the contaminated air, and a method that discharges purified air to the outside. The invention can achieve a high degree of economic efficiency and a high degree of purification efficiency.
Patent BR-0207523-B1 (BR)
Inventor: CLEMENS TIMOTHY JOSEPH
IPC: C09J7/35
Filed: 2002-03-01
Abstract: The present invention relates to a method of providing an article having a fluorinated polymer surface comprising the steps of: 
contacting a surface of the article with a curable adhesive; 
contacting a backing comprising a fluorinated polymer that is not perfluorinated with the curable adhesive; and 
curing the curable adhesive.
Patent BR-0315541-B1 (BR)
Inventor: JOSEPH STEPHEN CHRISTOPHER PERRY
IPC: B05B7/24
Filed: 2003-10-13
Abstract: A spray gun 101 has a spray head 150 connected to a body 102 of the spray gun 101 and a reservoir 156 connected to the spray head 150 for supplying liquid to a spray nozzle 153 of the spray head 150. The spray head 150 is arranged so that liquid from the reservoir 156 is delivered to the spray nozzle 153 without passing through the spray gun body 102 in response to actuation of the spray gun 101 via a trigger 105. The spray head 150 is releasably secured and can be detached from the spray gun body 102 and thrown away after use. The reservoir 156 is mounted on the spray head 150 and can be removed and thrown away with the spray head 150 after use.
Patent WO-0121803-B1 (WO)
Title: Antigenes de chlamydia et fragments d'adn correspondants et utilisations de ces derniers
Inventor: MURDIN ANDREW D
IPC: A61K39/00
Filed: 2000-09-15
Abstract: La présente invention concerne un procédé qui permet d'immuniser un hôte même un hôte humain avec de l'acide nucléique y compris de l'ADN, contre des maladies provoquées par une infection propagée par une souche de Chlamydia, plus spécifiquement de C. pneumoniae. On utilise dans ce procédé un vecteur contenant une séquence nucléotidique codant Npt2cp (ADP/ATP translocase)  d'une souche de Chlamydia pneumoniae et un promoteur pour assurer l'expression du gène Npt2cp (ADP/ATP translocase) chez l'hôte. Des modifications peuvent intervenir dans le cadre de cette invention.
Patent CH-700940-B1 (CH)
Inventor: RIEDL REINHARD
IPC: B25B21/00
Filed: 2008-01-30
Abstract: Ein elektrisches Handwerkzeuggerät (2) weist ein Gehäuse (4) auf, in dem ein Antriebsmotor (8), eine Elektronikeinrichtung (22) und eine Lüftereinrichtung (10) untergebracht sind, wobei mittels der Lüftereinrichtung (10) ein Luftstrom (L) erzeugbar ist, der entlang eines Hauptströmungspfades (26) zur Kühlung des Antriebsmotors (8) dient und von einer Innenfläche des Gehäuses (4) abstehende Luftleitelemente vorgesehen sind, die einen Nebenströmungspfad begrenzen, über den wenigstens ein Teil des Luftstromes (L) der Elektronikeinrichtung (22) zuleitbar ist. Es ist vorgesehen, dass die Luftleitelemente einen Nebenpfadeintritt des Nebenströmungspfades bilden, der zwischen einem Hauptpfadeintitt (24) des Gehäuses (4) und der Lüftereinrichtung (10) in den Hauptströmungspfad (26) ragt und dabei von der Lüftereinrichtung (10) abgewandt ist.
Patent CH-714700-B1 (CH)
Title: Verfahren und Vorrichtungen zum Aufzeichnen von Daten und Dokumenten einer Person.
Inventor: MARCEL RINGLER
IPC: G06Q50/18
Filed: 2018-03-13
Abstract: Die Erfindung betrifft ein Verfahren zum Aufzeichnen von Personendaten und Dokumenten. In einem Computersystem (1) wird ein visueller Code erzeugt (S2), der Referenzinformationen zum Identifizieren eines mit einer Person verlinkten Datenobjekts codiert. Unter Verwendung einer Kamera eines Mobilkommunikationsgeräts (2) werden die im visuellen Code codierten Referenzinformationen von einer visuellen Repräsentation des visuellen Codes aufgenommen und im Mobilkommunikationsgerät (2) gespeichert (S5). In dem Mobilkommunikationsgerät (2) wird ein Datenpaket erzeugt (S8), das die aufgenommenen Referenzinformationen und ein Bild eines Dokuments der Person beinhaltet. Das Datenpaket wird vom Mobilkommunikationsgerät (2) an das Computersystem (1) übertragen (S9). In dem Computersystem (1) wird das Bild des Dokuments verlinkt mit dem Datenobjekt, definiert durch im Datenpaket empfangene Referenzinformationen, gespeichert (S11). Die Erfindung betrifft auch ein entsprechendes Computersystem, ein Mobilkommunikationsgerät sowie jeweils ein Computerprogrammprodukt für ein Computersystem und ein Mobilkommunikationsgerät.
Patent DE-2425332-B1 (DE)
Title: Underground danger zone protection system - zone bounded by set frequency field danger signal emitted at deviant frequency
Inventor: WERNER WOLFGANG DIPL-ING
IPC: E21F17/18
Filed: 1974-05-25
Abstract: Underground danger zone protection systems keeps men out by means of HF signal transmitters allocated to the men, a danger zone boundary transmitter and a danger signal receiver to operate switches which give the alarm and/or cut out machinery. The danger zone is closed off by means of an HF field produced by a boundary transmitter working at frequency fl, and the danger signal transmitters are reflection transmitters which respond to incident HF energy at frequency fl. They emit a signal whose frequency or frequency spectrum differs from frequency fl, the danger signal receiver being blocked against frequency fl for this purpose. Preferably the danger zone boundary transmitter should cover the zone with a fan shaped HF field, though it can employ a bundled field likewise.
Patent EE-03190-B1 (EE)
Inventor: TIMO RAUTARINTA
IPC: B24B41/053
Filed: 1994-11-23
Abstract: The invention relates to a method and an apparatus for treating the edge of a piece, such as for edge grinding or the like, which is carried out in a treatment center (I) preferably by a machining means (1) in connection with a data processing unit. The machining device (1) comprises at least one machining means (1a), such as an abrasive disc or the like, treating the edge of a piece (3)on a support suface (2) in the treatment center (I). The treatment of the edge of the piece (3), supported at least for the time of the treatment phase on the support suface (2) in a stationary manner by means of a fixing arrangement (4), is carried out by the machining means (1a) preferably movable along the edge of the piece (3) and revolving, when pressed against the edge of the piece (3) to be treated, around an axis of rotation substantially perpendicular to the plane of the piece (3) to be treated. At least for facilitating the positioning of the machining means (1a) in relation to the edge to be treated, the machining means (1a) of the machining device (1) is supported at least for the time of the treatment of the piece (3), in a direction substantially perpendicular to the plane of the piece (3) to be treated, against a contact surface which is preferably solid and substantially parallel to the piece (3) and/or the support surface (2).
Patent ES-2088814-B1 (ES)
Title: Procedimientos de operacion entre puntos de valvula de una turbina de admision de arco parcial.
Inventor: SILVESTRI GEORGE JOSEPH
IPC: F01D17/24
Filed: 1993-05-21
Granted: 1997-12-01
Abstract: LA PRESION DE IMPULSO EN CADA UNO DE LOS MULTIPLES PUNTOS DE VALVULA SE DETERMINA DURANTE EL FUNCIONAMIENTO DE LA TURBINA A PRESION CONSTANTE. PARA CADA PAR DE PUNTOS DE VALVULA ADYACENTES, SE CALCULA UNA PRESION OPTIMA DE TRANSICION A PRESION CONSTANTE PARA EFECTUAR LA TRANSICION DE UNO A OTROS MODOS DE FUNCIONAMIENTO A PRESION DESLIZANTE Y A PRESION CONSTANTE. LA PRESION OPTIMA DE PUNTO DE TRANSICION A PRESION CONSTANTE PARA CADA PAR DE PUNTOS DE VALVULA SE CONVIERTE EN UN PORCENTAJE DE LA DIFERENCIA DE PRESION ENTRE LOS PARES ADYACENTES DE PUNTOS DE VALVULA. LA PRESION DE CAMARA DE IMPULSO SE UTILIZA PARA CALCULAR UNA CORRESPONDIENTE PRESION DE CAMARA DE IMPULSO PARA EFECTUAR LA TRANSICION DESDE UN MODO AL OTRO BASANDOSE EN EL PORCENTAJE DE DIFERENCIA DE PRESION. SE CONSIGUE MEJORAR EL RENDIMIENTO OPERACIONES DE UNA CENTRAL TERMOELECTRICA MEDIANTE EL AJUSTE DINAMICO DE LOS VALORES DE PUNTOS DE VALVULA DURANTE EL FUNCIONAMIENTO DE LA TURBINA.
Patent ES-2065294-B1 (ES)
Inventor: EDWARSON PETER ANDREW
IPC: A61K38/39
Filed: 1993-10-08
Granted: 1995-11-01
Abstract: The subject invention relates to fibrin sealants. More specifically, the subject invention relates to the use of a fibrin sealant wherein a composition comprising fibrin monomer or a composition comprising noncrosslinked fibrin is utilized as a component of the fibrin sealant. <IMAGE>
Patent ES-2109126-B1 (ES)
Title: Procedimiento de llenado de un molde de fundicion.
Inventor: GOSCH ROLF
IPC: B22D18/04
Filed: 1994-02-16
Granted: 1998-07-01
Abstract: PROCEDIMIENTO PARA EL LLENADO MEDIANTE VERTIDO ASCENDENTE DE UN MOLDE DE FUNDICION (83), EN EL QUE UNA ABERTURA DE BOCA (89) DEL MOLDE DE FUNDICION PRINCIPALMENTE CON EJE HORIZONTAL, ESTA UNIDA CON UNA ABERTURA DE VACIADO (82) DE UN DEPOSITO (81) QUE CONTIENE LIQUIDO EN FUSION, PRINCIPALMENTE UN HORNO DE MANTENIMIENTO DE CALOR, EN EL QUE EL ESPACIO HUECO DE MOLDEO (91) DEL MOLDE DE FUNDICION (83) SE MANTIENE DURANTE TODO EL LLENADO POR DEBAJO DEL NIVEL DEL LIQUIDO EN FUSION EN EL DEPOSITO (81), Y EN EL QUE DURANTE EL LLENADO HAY ALIMENTADORES (90) DEL MOLDE DE FUNDICION (83) POR DEBAJO DEL ESPACIO HUECO DEL MOLDE (91), Y DESPUES DEL LLENADO SE LLEVAN A UNA POSICION DISPUESTA POR ENCIMA DEL ESPACIO HUECO DEL MOLDE (91).
Patent ES-2123368-B1 (ES)
Title: Aparato de señalizacion luminosa.
Inventor: CELAYA ZUBIA PEDRO
IPC: B60Q7/00
Filed: 1995-04-21
Granted: 1999-08-01
Abstract: APARATO DE SEÑALIZACION LUMINOSA, QUE PRESENTA UNA CONSTITUCION INTEGRAL EN LA QUE DICHO CUERPO (1) DEL APARATO SEÑALIZADOR ES EL PROPIO CONTINENTE O CARCASA EXTERIOR QUE EN SU SENO TIENE DIRECTAMENTE ACOMODADO EL CAUSTICO PAQUETE DE MASA ACTIVA (2) CONSTITUTIVO DE LA CORRESPONDIENTE PILA ELECTROQUIMICA; SIENDO DICHA PILA DEL TIPO ALCALINO CON DESPOLARIZACION POR AIRE, ESTA PREVISTO QUE LA PRECEPTIVA AIREACION DEL PAQUETE DE MASA ACTIVA (2) DURANTE EL FUNCIONAMIENTO, TENGA LUGAR A TRAVES DE LOS PROPIOS ORIFICIOS (5) DISPUESTOS EN DICHO CUERPO DEL APARATO/CARCASA DE PILA (1) PARA ACCEDER AL ACCIONAMIENTO DE DICHA UNIDAD DE CONTROL (8).
Patent ES-2125756-B1 (ES)
Title: Sistema de frenado para vehiculo.
Inventor: MATSUTO TAKUSHI
IPC: B60T11/06
Filed: 1995-05-22
Granted: 1999-12-01
Abstract: Sistema de frenado para vehículo. La presente invención varía las respectivas fuerzas de frenado de un par de unidades de freno de rueda mediante un solo accionador reduciendo en gran medida el costo y el peso. Un accionador incluye un mecanismo de engranajes planetarios 14 que incluye un engranaje solar 24, un engranaje anular 25 rodeando coaxialmente el engranaje solar 24, una pluralidad de engranajes planetarios 26 en enganche tanto con el engranaje solar 24 como con el engranaje anular 25, y un soporte planetario 34; y un motor 15 conectado al tercer componente 24 entre los componentes 24, 25 y 34. Las respectivas partes intermedias de un sistema de transmisión 6{sub,R y un segundo sistema de transmisión 6{sub,F están conectadas por separado al primer componente 25 y el segundo componente 34.
Patent ES-2127091-B1 (ES)
Title: Piquete de via libre
Inventor: JUNQUERA MARTIN JOSE MIGUEL
IPC: B61L5/12
Filed: 1995-11-24
Granted: 1999-12-16
Abstract: Para formarlo se unen las dos piezas principales que lo comprenden. La correspondiente a la placa base (2), la forman una placa horizontal (4) y dos verticales (3), de la cara superior de la placa horizontal (4), salen las placas (3) que forman ángulo de 90º con la primera, la placa horizontal dispone los taladros (6) para su anclaje a la Infraestructura Ferroviaria, las pletinas verticales (3) disponen de los agujeros rasgados (5) para su unión a la carcasa. La carcasa (1) dispone de franjas transversales (9) para cumplir la reglamentación de señalización Ferroviaria en orden a distinguir los colores que lo componen, para su unión a la placa base dispone de los taladros (7). Las pletinas verticales (3) se introducen en la carcasa (1) hasta hacer tope, por los agujeros (5, 7) se introducen tornillos para la unión de ambas piezas.
Patent ES-2180355-B1 (ES)
Title: Perfeccionamiento de tunel de secado para vagonetas de material ceramico.
Inventor: GARCIA APARICIO JOSE MARIA
IPC: F26B21/02
Filed: 1999-06-04
Granted: 2005-04-16
Abstract: La presente invención se refiere al perfeccionamiento de túnel de secado para vagonetas de material cerámico mediante la utilización de unas cámaras de recirculación dispuesta en la parte superior del secadero, comunicadas con el canal de secadero a través de unos orificios realizados en el forjado del canal, y en la utilización de unos grandes ventiladores axiales que favorezcan la recirculación del aire procedente de las salas térmicas y de tal forma que se pueda controlar la humedad y temperatura del mismo.
Patent FR-2817588-B1 (FR)
Inventor: AIELLO GIOVANNI
IPC: E21B47/12
Filed: 2000-12-05
Granted: 2003-02-28
Abstract: PROBLEM TO BE SOLVED: To provide an information transfer means using a series of rods offering a dual injection technique. SOLUTION: A series of boring rods 20i and 20s are aligned by the information transfer means. Each rod is provided with a conductive outside pipe 34, a conductive inside pipe 36 conveying a liquid under the prescribed pressure, and an annular space 38 located between the inner wall of the outside pipe and the outer wall of the inside pipe and filled with a nonconductive liquid. The information transfer means is provided with a first inductively coupled coil 40 arranged near the lower end section of a series of rods in the annular space 38, a second inductively coupled coil 46 arranged near the upper end section of a series of rods in the annular space 38, and a means formed in the second coil to receive an electric signal.